Question

Words that connect words, phrases, or clauses are called connectives. The primary connectives are: 

1. Conjunctions (as, and, but, if, or, etc.) 

2. Prepositions (at, by, in, to, etc.)

3. Relative pronouns (who, which, what, and that) 

4. Conjunctive or relative adverbs (hence, when, whence, where, why, etc.)